llvm-6502/avx-128.ll at 0e6d540d1745ea00042ca6d56d6e5929e7c8e5ca - llvm-6502 - Applefritter: Git

6502/llvm-6502

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Nate Begeman 2ea8ee7c76 Formalize the notion that AVX and SSE are non-overlapping extensions from the compiler's point of view. Per email discussion, we either want to always use VEX-prefixed instructions or never use them, and are taking "HasAVX" to mean "Always use VEX". Passing -mattr=-avx,+sse42 should serve to restore legacy SSE support when desirable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121439 91177308-0d34-0410-b5e6-96231b3b80d8

2010-12-10 00:26:57 +00:00

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LLVM

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 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -march=x86 -mcpu=corei7 -mattr=avx | FileCheck %s
 @z = common global <4 x float> zeroinitializer, align 16
 define void @zero() nounwind ssp {
 entry:
   ; CHECK: vxorps
   ; CHECK: vmovaps
   store <4 x float> zeroinitializer, <4 x float>* @z, align 16
   ret void
 }